Cisco 2900XL's not responding to ping very well

[junior238]

We've been having problems with some of our switches in our network. Its very odd so bear with me while I explain this.

This segment of our network runs off of a lucent P550. There are several types of switches out there. Most of the switches are cisco 2924XL's and the rest are Lucent P120's. We had an incident last week where they were not responding to ping very well. It would take anywhere between 20 and 40 pings for the switch to respond. Once the switch did respond it would be fine for a while. I'm guessing that this was related to ARP's.

This went away on its own, but started again a couple of days ago. It is still going on.

We have tried sniffing for any odd traffic and checked the broadcast limits. Nothing showed up and the broadcast limits werent being triggered. The funning thing is that this started when the cord red worm came about but we haven't been able to find anything related.

Can someone please help???!!!

 

[mmcgurty]

In our company we recently daisy-chained a 2924XL to another 2924XL via CAT5 crossover. We use What's Up network monitoring software to do a ping every 60 seconds, and if it does not respond in 4 tries it pages us via ATT text message that it is down. If it suceeds in pinging after its down, then it responds with an up message. In any case, since we've installed that second switch it seems its down more than up according to What's Up. I am guess its pushing more bandwidth than it has available to receive the ping, hence the problem. When I get back from vacation I am going to try trunking it (200Mbps instead of 100Mbps) and see if that fixes it.

 

[junior238]

These switches have been running fine for atleast 2 years before this started. We started seeing these symptoms around code red time. I've check all the websites I could find and none of these products are vulnerable to the virus.

I thought maybe it was traffic related but there doesn't seem to be a lot of traffic when we sniff. I'm at a loss.

 

[junior238]

Just to let everyone know. We did a software upgrade on the Lucent P550 and it fixed our problems. No other explination.